LG 42LM615T User Manual page 85

ꕢ Vibrating horizontal /vertical lines and fishnet patterns appear momentarily.
• Such a problem may happen when there is strong electronic interference. Turn
off other electronic devices such as mobile phones, power tools and other small
electrical appliances.
ꕢ The screen display freezes or does not work properly during a digital
broadcast.
• This may occur in case of a weak signal or unstable reception. Adjust the antenna
orientation and cable connections.
• If the signal strength or quality is low on
administration office.
Manual Tuning, check with the TV station or